Bryan Obida

We are online

Monday - Friday 6AM - 6PM PST

QC721-50-B5-G Boston Gear Mechanical Components

Boston Gear QC721-50-B5-G Right Angle Reducer; 50 To 1 Nominal Ratio; 56C Frame; Coupling Input; Left Hand Output; Worm Gear; QC700 Series; Direct Mounted; 5/8" Input Shaft Diameter; Rugged Fine Grained Cast Iron; 687In-Lbs Output Torque

Part#:QC721-50-B5-G

Manufacturer:Boston Gear

Product Lifecycle:Active

Get a quick Quote!

Right Angle Reducer; 50 To 1 Nominal Ratio; 56C Frame; Coupling Input; Left Hand Output; Worm Gear; QC700 Series; Direct Mounted; 5/8" Input Shaft Diameter; Rugged Fine Grained Cast Iron; 687In-Lbs Output Torque

Check out the QC721-50-B5-G Boston Gear price in the box on the right side or send a quick quote.

Product Details

  • Overall Height
    7.65 Inch | 194.31 Millimeter
  • Input Shaft Length
    1.563 Inch | 39.7 Millimeter
  • Base to Center of Input Shaft
    4.34 Inch | 110.236 Millimeter
  • Output Bore
    0 Inch | 0 Millimeter
  • Overall Width
    8 Inch | 203.2 Millimeter
  • Output Shaft Length
    2.09 Inch | 53.086 Millimeter
  • Overall Length
    9.76 Inch | 247.904 Millimeter
  • Base to Center of Output Shaft
    2.28 Inch | 57.912 Millimeter
  • Center Distance
    2.06 Inch | 52.324 Millimeter
  • Output Shaft Diameter
    1 Inch | 25.4 Millimeter
  • Input Shaft Diameter
    0.625 Inch | 15.875 Millimeter
  • Bolt Hole Diameter
    0.375 Inch | 9.525 Millimeter
  • Input Rating value plus um
    0.66HP
  • Nominal Center Distance
    2 Inch | 50.8 Millimeter
  • Inch - Metric
    Inch
  • Weight / LBS
    30
  • Other Features
    Single Reduction | No Lubricant
  • Output Torque
    857In-Lbs
  • Fan Cooling
    No
  • Housing Material And Finish
    Rugged Fine Grained Cast Iron
  • Maximum Overhung load value And um
    700Lbs
  • Base Included
    No
  • Manufacturers Series
    QC700
  • Mounting Bolt Pattern footprint
    Rectangular
  • Nominal Max Input Rating
    0.5HP
  • Mounting Position
    Floor
  • Gearing
    Worm
  • Mounting Method
    Direct Mounted
  • Output RPM at 1750 RPM Input
    35
  • Nominal Max Output RPM
    35
  • Brand
    BOSTON GEAR
  • Mounting Frame
    56C
  • Motor Included
    No
  • Minimum Buy Quantity
    N/A
  • Output Type
    Left Hand
  • UNSPSC
    26111537
  • Reducer Type
    Right Angle
  • Input Type
    C-Face Coupling
  • Weight / Kilogram
    16.375
  • Nominal Ratio
    50:1

Product condition

ORIGINAL PACKAGING

SURPLUS ORIGINAL PACKAGING - 100% unused and in original packaging


1-year warranty

Get a quick Quote!

Request a quote, and we will send you price and availability within minutes.

Select Qty:

Average response time: 11 minutes

By purchasing this item, you agree to the Terms & Conditions

Quotebeam is NOT an authorized distributor of Boston Gear

Shipping and Delivery Worldwide

calculate costs and time


Secure Payment Processing

with money back guarantee


1 year warranty

on all parts


Responsive Customer Support

we're here to help!

Need more details?

Feel free to chat with us or check our FAQ

Boston Gear Disclaimer:

The product is unused surplus. Quotebeam is not an authorized surplus dealer or affiliate for the Manufacturer of this product. Products may feature older date codes or be from an earlier series than what is currently available from the manufacturer or authorized dealers. Because Quotebeam is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Boston Gear Controls products will have firmware already installed, Quotebeam makes no representation as to whether a Controls product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Quotebeam also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Boston Gear, its distributors, or any other source. Quotebeam also makes no representations as to your right to install any such firmware on the product. Quotebeam will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Relevant products

Do you have questions?

We’re here for you ✨

We are a proud member of:

Association for High Technology Distribution LogoAssociation for Advancing Automation LogoThe International Society of Automation Logo